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6444867 |
Process for linear alpha olefins
Linear alpha olefins are typically produced by starting with a trialkylaluminum compound, such as triethylaluminum, and then subjecting the trialkylaluminum compound to alkyl chain growth...
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6258988 |
Method for reforming organics into shorter-chain unsaturated organic compounds
A method is disclosed for reforming organics into shorter-chain unsaturated organic compounds. A molten metal bath is provided which can cause homolytic cleavage of an organic component of an...
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5898091 |
Process and plant for the conversion of olefinic C.sub.4 and C.sub.5 cuts to an ether and to propylene
For the conversion of an olefinic C 4 or C 5 cut to an alkyl-tertiobutylether or alkyl-tertioamylether and to propylene, by metathesis, the process comprises four successive steps: (1) selective...
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5877378 |
Process for selective utilization of alpha-olefins in mixtures containing non-alpha-olefins
The alpha-olefin content of mixed hydrocarbon streams is selectively utilized to produce trialkylaluminum compounds in which the alkyl groups are linear primary alkyl groups. This selective...
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5817902 |
Process for preparing α-olefins
The invention provides a process for making α-olefins. In the chain growth reaction step of the process a jet loop reactor is used to fully use high pressure ethylene, and two or more stages of...
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5780697 |
Trialkyl aluminum displacement process
A process for deactivating a nickel, cobalt, or nickel and cobalt displacement catalyst during a reaction wherein an alkyl group is displaced from a trialkyl aluminum compound in a reaction mixture...
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5731480 |
Coproduction of vinylidene alcohols and vinylidene hydrocarbons
A process is described for coproducing vinylidene alcohol and vinylidene olefin. The process involves dimerizing one or more vinylolefins with an alkyl aluminum catalyst to form a first product...
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5550303 |
High efficiency olefin displacement process
Olefin is formed by displacing alkyl groups of aluminum trialkyl by contacting ethylene with the aluminum trialkyl in an ethylene:aluminum trialkyl mol ratio in the range of 2-8:1 at about 0°-70°...
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5536859 |
Alpha-olefin catalyst and process
This invention provides an improved process for the preparation of an aluminum alkyl chain growth product by the chain growth reaction of alpha-olefins on aluminum alkyl, the improvement comprising...
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5276220 |
Actinide catalyzed chain growth process
An improved process for preparing an alkyl chain growth product by the chain growth reaction of α-olefin in an aluminum alkyl uses a catalyst system which comprises an actinide metallocene.
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5210338 |
Catalyzed chain growth process
An improved process for the preparation of higher aluminum alkyls by a chain growth reaction of an α-olefin and especially ethylene with a lower molecular weight aluminum alkyl or aluminum hydride...
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5144053 |
Aluminum alkyls and linear 1-olefins from internal olefins
Linear 1-olefins are prepared from internal olefins by (i) reacting them in the presence of an isomerization catalyst and a tri-lower alkyl aluminum so as to cause internal olefin to isomerize to...
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4918254 |
Nickel catalyzed displacement reaction
Alkyl groups in trialkyl aluminum are displaced by α-olefins in the presence of a nickel catalyst. The displaced alkyl group evolve as α-olefins. The displacement is fast and the catalyst is then...
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4686238 |
Process for the preparation of hydrocarbons
A process for the preparation of hydrocarbons by reaction of carbon monoxide with hydrogen over a supported cobalt catalyst in a fixed bed reactor downflow operation with recycle of a heavy...
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4594141 |
Conversion of high boiling organic materials to low boiling materials
A process for the conversion of high boiling saturated organic materials is described. The method comprises contacting said high boiling organic materials at a temperature of at least about 300°...
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4484016 |
Process for making a mixture of ethylene and butene-1
Butene-1 and ethylene mixtures are made by reacting ethylene with a trialkyl aluminum in a boiling bed reactor. The process is more efficient in that it is selective for making butene-1 and more...
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4455289 |
Combined process for preparing alumina and alpha-olefins
A combined process for preparing alumina and alpha-olefins (α-olefins) is disclosed. The process comprises: (a) reacting tri-(C 2 to C 24 ) alkylaluminum with ethylene in the presence of...
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4380684 |
Linear alpha olefin production using a tank growth reactor
A method for preparing C 4 to C 10 α-olefins employing trialkyl aluminum compounds, in a growth zone having a recirculation rate through an external heat transfer zone such that the contents of...
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4314090 |
Linear alpha olefin production
A method for preparing C 4 to C 10 α-olefins having a major portion C 6 α-olefins employing tri alkyl aluminum compounds, e.g., Al(C 2 H 5 ) 3 or Al(C 4 H 9 ) 3 or mixtures of Al(C 2 H 5...
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4125567 |
Terminal olefin preparation
Terminal olefin is prepared by bringing together (1) a compound having the formula ##STR1## wherein Cp is a π-cyclopentadienyl radical, R is terminal alkyl and X is an essentially non-interfering...
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4045506 |
Separation of hydrocarbon mixtures by catalytic dealkylation
A process for separating mixtures of close boiling alkenes and alkanes which employs catalytic dealkylation of alkylphenols.
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4018657 |
Separation of hydrocarbon mixtures by alkyl displacement
A process for separating mixtures of close boiling, high-molecular weight alkenes and alkanes which employs phenoxide-catalyzed alkyl displacement.
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3992472 |
Synthesis of ethylenically unsaturated compounds from aldehydes or ketones
Certain hydrocarbylidene-niobium or -tantalum complexes react with aldehydes or ketones to produce ethylenically unsaturated compounds. Exemplary is the reaction of...
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3965206 |
Production of stilbene and styrene
Toluene and toluene derivatives are dehydrocoupled to stilbene and stilbene derivatives in a vapor phase reaction in the presence of a metal oxide. The stilbene products are purified of by-product...
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3906053 |
Process for the production of olefins
Olefins in the range of 6-20 carbon atoms are prepared by feeding lower olefin (e.g., ethylene), lower alkyl organometallic (e.g., triethyl aluminum) and product olefin into a reaction system in...
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3697611 |
OLEFIN-ALKYL IODIDE EXCHANGE
Higher olefins are prepared by an exchange reaction between lower olefins and higher organic iodides according to equation I: in the presence of a noble metal catalyst. For example, octene,...
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3696161 |
A CHEMICAL PROCESS OF SEPARATING HYDROCARBYL ALUMINUM FROM OLEFINS BY THE USE OF 2:1 COMPLEXES OF ALUMINUM ALKYLS AND AN ALKALI METAL SALT
Hydrocarbyl aluminum compounds are separated from olefins readily by the use of 2:1 complexes of aluminum alkyls and various complexing agents such as sodium fluoride and sodium cyanide. An...
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3655520 |
DISTILLATION OF OLEFINS WITH ALKANOL ADDITION TO PREVENT DEGRADATION
The disclosure describes methods of improving the operation of olefin fractionation systems wherein residual materials contained in the olefins catalyze side reactions of the olefins during the...
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3542891 |
PREPARATION OF ALKENIC COMPOUNDS
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3527830 |
PREPARATION OF OLEFINIC HYDROCARBONS
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3509228 |
ALPHA-OLEFIN ISOMERIZATION
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3506723 |
1-HYDROXYMETHYL-2-HYDROXYETHYL-CYCLOPENTANE
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3506722 |
DI(HYDROXYMETHYL)METHYL-CYCLOPENTANES
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3487097 |
PROCESS FOR PRODUCING TRIALKYL ALUMINUM AND ALUMINUM TRIALKOXIDES
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3468971 |
REACTIONS OF ALKALI METAL TETRAALKYL-ALUMINUM COMPOUNDS WITH ACTIVE HALOGEN COMPOUNDS
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3458594 |
GROWTH PRODUCT OLEFINS PROCESS
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3457320 |
PRODUCTION OF 3-METHYL-1-BUTENE
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3445494 |
PREPARATION OF ALUMINUM ALKYLS
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3423444 |
PROCESS FOR PRODUCING ALUMINUM ALKYLS AND ALPHA-OLEFINS
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3415861 |
Organoaluminum compound production
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3412126 |
Process for producing trialkyl aluminum compounds
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3409637 |
Sulfonating olefins with gaseous sulfur trioxide and compositions obtained thereby
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3400170 |
Process for recovering olefins from mxitures with aluminum alkyls
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3395166 |
Thermal transalkylation of trialkyl aluminums
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3391212 |
Process for the preparation of olefins
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3389161 |
Process for displacing alkyl residues from trialkyl aluminum compounds
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3384677 |
Olefin isomerization
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3383291 |
Recovery of trialkyl aluminum catalysts by plural distillation with hydrocarbon vapor stripping
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3375292 |
Diolefin production
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3369037 |
Preparation of high purity primary organo aluminum compounds
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